Morse code: made for speed

It may look like the letters in the morse code alphabet were randomly assigned dots and dashes. This is not the case. The letters were assigned codes based on frequency of the letter. For example, "e" is the most common letter. The code for "e" is a simple dot. "t" is the next most common letter, represented by a dash.

Here is a list of all the morse code symbols:

And here is a list of letters, sorted by frequency:

(images from wikipedia)